Cement-mold.



C. STRAYER.

CEMENT MOLD.

APPUCATION FILED SEPT. 18. 1312.

l 1 86,348. Patented J 11116 6, 1916.

2 SHEE-TSSHEET I.

1. JNVENTGR STR'AYER.

CEMENT MOLD.

APPLICATXON FILED SEPT.18. 912. I 1,1 86,348. Patented June 6, 1916.

2 SHEETS SHEEY 2.

m/ \z 7......L .lil kiv wrmasszs CHARLES STRAYER, 0F JOHNSTOWN, PENNSYLVANIA.

CEMENT-MOLD.

Application filed September 18, 1912. Serial No. 721,041.

To all whom it may concern:

Be it known that 1, CHARLES STRAYER, a resident of Johnstown, in the county of Cambria and State of Pennsylvania, have invented certainnew and useful Improvements in Cement-Molds, of which the following is a specification.

. The object of this invention is to provide a mold which is adapted for universal use in the manufacture of cement or concrete blocks of various shapes and forms.

It has been customary heretofore to provide a separate mold for each shape, making it necessary for a manufacturer of cement blocks to provide himself with a large number of individual molds. The mold of the present invention takes the place of many of the separate molds heretofore necessary, the same being formed in sections which are adapted to be variously assembled for forming molds of a diversity of sizes and shapes.

A characteristic of the invention is the provision of mold wall sections of varying depth, the several sections being preferably multiples of the smallest or shallowest section, and with the sections fitting together interchangeably they may be assembled to mold a shape of any desired depth or thickness.

The invention also includes provision for shaping an edge or corner of the block, as in the molding of Window sills, shapes for steps, etc.

In the accompanying drawings, Figure 1 is a top plan of the improved mold, and. Fig. 2 is a vertical longitudinal section. Fig. 3 is a vertical cross section on line 83 of Fig. 2. Fig. 4 is a cross section of an adaptation of the mold provided with a corner former, and Fig. 5 is an elevationof an inner side wall of the mold equipped with the former of Fig. 4, the section being on line 5-5 of Fig. 4. Figs. 6 and 7 are views similar to Figs. 4 and 5, respectively, illustrating another type of edge former.

Referring to the drawings, a plurality of wall sections is employed in the formation of each of the opposite side walls of the mold, in the adaptation here shown four sections 1, 2, 4 and 8 being provided which may, respectively, be one, two, four and eight inches deep. The sections may be advantageously formed of rolled channels Specification of Letters Patent.

Patented June 6,

with their flanges apertureo. at 9 to. receive bolts 10 which fasten posed sections.

Sections 2, 4 and 8 arepreferably multiples of the shallowest section 1, a desirable arrangement being to have section 4 double the depth of section 2, and section 8 double the depth of section 4. With the sections adapted to be connected together interchangeably, with any section either above or below any other section, it will be seen that a mold of anV desireddepth maybe procombination of sections to secure the re,

together the supervided by utilizing one, two, or any desired quircd depth. For very deep molds two, or

more of the deeper sections of like depth! 70, Theseveral sections are provided with end extensions to which the devices connect for may be combined.

tying together the opposite side walls of the mold. For the wider sections, as 4 and 8, a bar 11 is secured to the outer face thereof with its ends projecting from the section extremities,

one end 11' forming a hinge eye to which hinge bar 12is secured by bolt 13, and the opposite end 14 of bar 11 is formed with an opening to receive hook 15 for adjustably securing tie chain 16. For the shallower sections, as land 2, the channel fiangeiniay be extended at one end as indicated at .17 to receive the hinge bar12, and at the opposite;

end the web of the channel is extendedv as shown at 18 to receive the tie chain and hook. Hinge bars 12 are each formed with a series of openings for bolts 13 so that the width of the mold may be varied as desired, at the opposite end of'the mold such variations being taken care of by the hooks and chain as will be understood. The end walls 20 of the m'old may consist of boards or plates cut to the requisite length and width, one of the mold end walls bearing against stops 21 bolted to the inner sides of the mold sections. The opposite end wall bears against stops 22 with securing ;o1 ts 22 thereof adapted to pass through two of the evenly spaced bolt apertures 23 in the side wall sections, whereby the length of the molding cavity may be varied according to requirements of the work in hand. With the apertures 23 evenly spaced apart in inches or fractions thereof a very accurate adjustment is ob" tained. Stops 22 are preferably of angular form with one leg longer than the other so that Where the depth of a mold section per Knits the longer leg may be arranged to to ceive the end Wall, asvat the bottom of Fig. 2, While for the narrower section' 4 the shorter le is arranged to engage the Wall with the longer leg disposed longitudinally of the mold.

As before noted, the Wall section may be arranged with any one of the sections uppermost, and in the adaptation shown in Figs. 4 and 5 the uppermost section of one side of the mold carries a stripdike form 25 for shaping the molded block with a bev; eled edge or corner such as is frequently desired for window sills, etc. The form sec tions 2-3 are preferably in unit lengths or multiples of the unit, as shown in Fig. so that any of the so eralsections may be com-- bined to provide a form of a length corresponding to the mold cavity and Without interfering with the end Walls 20. Bolt apertures 23 are utilized for passing screws or bolts 24. which secure form 25 and with the space'hetween the apertures of uniform length, the unit length sections of form may be combined as required, with each section securely fastened.

In Figs. 6 and 7, an adaptation is shown for molding the front of a stair or step hloci-r. The form .27 in this instance 15 also in unit sections or multiples of the unit and secured to a flange of one of the wall SW ns, the securing means therefor exteniiling into form 2?] The configuration of the inner face of form 2 17 corresponds to the front upper portion of: the or step. Form 27 corresponds in depth. to one of the side wall sections, or to a cone hination of two or more of them, so that the Wall opposite form 27 may he of usual sectional form- Forms or shapes anc *3? are sininly examples of a great variety of 501 s tin may utilized, an infinite vaorins being possible, as will he rial outfit h ivrein proposed may it, La in iornnug molds of various ien ths deo'tl s and Widths. and ada Red [3 3 i y 1 for either plain or shaped surfaces, as desired, With many individual molds of differont sizes heretofore required.

I claim 1. The combination with a cement mold, having side Walls and end Willlf, one of the latter being adjustable longitudinally of the mold, of a forming device having its dircction of length extending lengthwise of a Wall of the mold, said device being formed in sections varying in length, all oi? the sec tions longer than the shortest section heing multiples of the latter, the sections adapted to be secured together interchangeably to said wall.

2. A cement inold havin side Walls and end Walls, one of the latter being adjustable longitudinally of the mold, the side walls formed with. series of apertures evenly spaced apart, end-wall holding devices holted to the side Walls and said apertures, and a sectional forming strip adapted to term a continuous lace extending lengthwise oi Wall, said strip hating the sections fitting together interchangeably and bolted to said side wall at said apertures.

3. A cemen niold hating a Wall pmvided with a series of openings evenly spaced apart, a forming devi e having direc tion of length extending lengthwise oi a Wall of the mold, said devi being formed in sections of varyin i th adapted to abut end to l e device, and so tiring dei'i ada d to SM thins i): no; adapted to o1 said points the sectio' Wit. of the sections sinnlar tions, the h i a section l) openings, tioned at an the derive oi' the d-tax the ends oi" 'inilar ends evera in presence l itnesses:

fit. 

